<?xml version="1.0" encoding="iso-8859-1"?>


<metadata_set id="silva-extra" ns_uri="http://infrae.com/namespaces/metadata/silva-extra" ns_prefix="silva-extra">
<title></title>
<description></description>
  <metadata_element id="subject">
   <index_type>ZCTextIndex</index_type>
   <index_p>1</index_p>
   <field_type>TextAreaField</field_type>
   <acquire_p>1</acquire_p>
   <read_only_p>0</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="hidden" type="int" value="0" />
        <value key="unicode" type="int" value="1" />
        <value key="max_linelength" type="str" value="" />
        <value key="max_lines" type="str" value="" />
        <value key="width" type="int" value="40" />
        <value key="external_validator" type="str" value="" />
        <value key="height" type="int" value="5" />
        <value key="required" type="int" value="0" />
        <value key="css_class" type="str" value="" />
        <value key="default" type="str" value="" />
        <value key="title" type="str" value="Subject" />
        <value key="description" type="str" value="Subject of this content area." />
        <value key="max_length" type="str" value="" />
        <value key="whitespace_preserve" type="int" value="0" />
        <value key="extra" type="str" value="style=&quot;width: 96%&quot;" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="hidden"></value>
     <value key="unicode"></value>
     <value key="max_linelength"></value>
     <value key="max_lines"></value>
     <value key="width"></value>
     <value key="external_validator"></value>
     <value key="height"></value>
     <value key="required"></value>
     <value key="css_class"></value>
     <value key="default"></value>
     <value key="title"></value>
     <value key="description"></value>
     <value key="max_length"></value>
     <value key="whitespace_preserve"></value>
     <value key="extra"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="too_many_lines">You entered too many lines.</message>
     <message name="line_too_long">A line was too long.</message>
     <message name="too_long">You entered too many characters.</message>
   </field_messages>
   <index_args>
     <value key="lexicon_id">silva_lexicon</value>
     <value key="doc_attr">proxy_value</value>
     <value key="index_type">Cosine Measure</value>
   </index_args>
  </metadata_element>
  <metadata_element id="comment">
   <index_type>ZCTextIndex</index_type>
   <index_p>1</index_p>
   <field_type>TextAreaField</field_type>
   <acquire_p>1</acquire_p>
   <read_only_p>0</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="hidden" type="int" value="0" />
        <value key="unicode" type="int" value="1" />
        <value key="max_linelength" type="str" value="" />
        <value key="max_lines" type="str" value="" />
        <value key="width" type="int" value="40" />
        <value key="external_validator" type="str" value="" />
        <value key="height" type="int" value="5" />
        <value key="required" type="int" value="0" />
        <value key="css_class" type="str" value="" />
        <value key="default" type="str" value="" />
        <value key="title" type="str" value="Comment" />
        <value key="description" type="str" value="Additional comments on  this content." />
        <value key="max_length" type="str" value="" />
        <value key="whitespace_preserve" type="int" value="0" />
        <value key="extra" type="str" value="style=&quot;width: 96%&quot;" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="hidden"></value>
     <value key="unicode"></value>
     <value key="max_linelength"></value>
     <value key="max_lines"></value>
     <value key="width"></value>
     <value key="external_validator"></value>
     <value key="height"></value>
     <value key="required"></value>
     <value key="css_class"></value>
     <value key="default"></value>
     <value key="title"></value>
     <value key="description"></value>
     <value key="max_length"></value>
     <value key="whitespace_preserve"></value>
     <value key="extra"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="too_many_lines">You entered too many lines.</message>
     <message name="line_too_long">A line was too long.</message>
     <message name="too_long">You entered too many characters.</message>
   </field_messages>
   <index_args>
     <value key="lexicon_id">silva_lexicon</value>
     <value key="doc_attr">proxy_value</value>
     <value key="index_type">Cosine Measure</value>
   </index_args>
  </metadata_element>
  <metadata_element id="creationtime">
   <index_type>DateIndex</index_type>
   <index_p>1</index_p>
   <field_type>DateTimeField</field_type>
   <acquire_p>0</acquire_p>
   <read_only_p>1</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="input_style" type="str" value="text" />
        <value key="hidden" type="int" value="0" />
        <value key="input_order" type="str" value="ymd" />
        <value key="time_separator" type="str" value=":" />
        <value key="date_separator" type="str" value="/" />
        <value key="external_validator" type="str" value="" />
        <value key="date_only" type="int" value="0" />
        <value key="default_now" type="int" value="0" />
        <value key="ampm_time_style" type="int" value="0" />
        <value key="required" type="int" value="0" />
        <value key="allow_empty_time" type="int" value="0" />
        <value key="css_class" type="str" value="" />
        <value key="title" type="str" value="Time of creation" />
        <value key="description" type="str" value="Time of creation. Automatically set. Time format: yyyy/mm/dd hh:mm" />
        <value key="unicode" type="int" value="1" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="input_style"></value>
     <value key="hidden"></value>
     <value key="input_order"></value>
     <value key="time_separator">string::</value>
     <value key="date_separator">string::</value>
     <value key="end_datetime"></value>
     <value key="external_validator"></value>
     <value key="date_only"></value>
     <value key="default_now"></value>
     <value key="ampm_time_style"></value>
     <value key="required"></value>
     <value key="allow_empty_time"></value>
     <value key="css_class"></value>
     <value key="default">python: content.get_creation_datetime() or None</value>
     <value key="title"></value>
     <value key="description"></value>
     <value key="start_datetime"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="not_datetime">You did not enter a valid date and time.</message>
     <message name="datetime_out_of_range">The date and time you entered were out of range.</message>
   </field_messages>
   <index_args>
   </index_args>
  </metadata_element>
  <metadata_element id="modificationtime">
   <index_type>DateIndex</index_type>
   <index_p>1</index_p>
   <field_type>DateTimeField</field_type>
   <acquire_p>0</acquire_p>
   <read_only_p>1</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="input_style" type="str" value="text" />
        <value key="hidden" type="int" value="0" />
        <value key="input_order" type="str" value="ymd" />
        <value key="time_separator" type="str" value=":" />
        <value key="date_separator" type="str" value="/" />
        <value key="external_validator" type="str" value="" />
        <value key="date_only" type="int" value="0" />
        <value key="default_now" type="int" value="0" />
        <value key="ampm_time_style" type="int" value="0" />
        <value key="required" type="int" value="0" />
        <value key="allow_empty_time" type="int" value="0" />
        <value key="css_class" type="str" value="" />
        <value key="title" type="str" value="Modification time" />
        <value key="description" type="str" value="Time of last modification. Automatically set. Time format: yyyy/mm/dd hh:mm" />
        <value key="unicode" type="int" value="1" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="input_style"></value>
     <value key="hidden"></value>
     <value key="input_order"></value>
     <value key="time_separator">string::</value>
     <value key="date_separator">string::</value>
     <value key="end_datetime"></value>
     <value key="external_validator"></value>
     <value key="date_only"></value>
     <value key="default_now"></value>
     <value key="ampm_time_style"></value>
     <value key="required"></value>
     <value key="allow_empty_time"></value>
     <value key="css_class"></value>
     <value key="default">python: content.get_modification_datetime(update_status=0)</value>
     <value key="title"></value>
     <value key="description"></value>
     <value key="start_datetime"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="not_datetime">You did not enter a valid date and time.</message>
     <message name="datetime_out_of_range">The date and time you entered were out of range.</message>
   </field_messages>
   <index_args>
   </index_args>
  </metadata_element>
  <metadata_element id="publicationtime">
   <index_type>DateIndex</index_type>
   <index_p>1</index_p>
   <field_type>DateTimeField</field_type>
   <acquire_p>0</acquire_p>
   <read_only_p>1</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="input_style" type="str" value="text" />
        <value key="hidden" type="int" value="0" />
        <value key="input_order" type="str" value="ymd" />
        <value key="time_separator" type="str" value=":" />
        <value key="date_separator" type="str" value="/" />
        <value key="external_validator" type="str" value="" />
        <value key="date_only" type="int" value="0" />
        <value key="default_now" type="int" value="0" />
        <value key="ampm_time_style" type="int" value="0" />
        <value key="required" type="int" value="0" />
        <value key="allow_empty_time" type="int" value="0" />
        <value key="css_class" type="str" value="" />
        <value key="title" type="str" value="Publication time" />
        <value key="description" type="str" value="Time of publication. Automatically set. Date format: yyyy:mm/dd hh:mm" />
        <value key="unicode" type="int" value="1" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="input_style"></value>
     <value key="hidden"></value>
     <value key="input_order"></value>
     <value key="time_separator">string::</value>
     <value key="date_separator">string::</value>
     <value key="end_datetime"></value>
     <value key="external_validator"></value>
     <value key="date_only"></value>
     <value key="default_now"></value>
     <value key="ampm_time_style"></value>
     <value key="required"></value>
     <value key="allow_empty_time"></value>
     <value key="css_class"></value>
     <value key="default">content/publication_datetime | nothing</value>
     <value key="title"></value>
     <value key="description"></value>
     <value key="start_datetime"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="not_datetime">You did not enter a valid date and time.</message>
     <message name="datetime_out_of_range">The date and time you entered were out of range.</message>
   </field_messages>
   <index_args>
   </index_args>
  </metadata_element>
  <metadata_element id="expirationtime">
   <index_type>DateIndex</index_type>
   <index_p>1</index_p>
   <field_type>DateTimeField</field_type>
   <acquire_p>0</acquire_p>
   <read_only_p>1</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="input_style" type="str" value="text" />
        <value key="hidden" type="int" value="0" />
        <value key="input_order" type="str" value="ymd" />
        <value key="time_separator" type="str" value=":" />
        <value key="date_separator" type="str" value="/" />
        <value key="external_validator" type="str" value="" />
        <value key="date_only" type="int" value="0" />
        <value key="default_now" type="int" value="0" />
        <value key="ampm_time_style" type="int" value="0" />
        <value key="required" type="int" value="0" />
        <value key="allow_empty_time" type="int" value="0" />
        <value key="css_class" type="str" value="" />
        <value key="title" type="str" value="Expiration time" />
        <value key="description" type="str" value="Time of expiration. Automatically set. Time format: yyyy/mm/dd hh:mm" />
        <value key="unicode" type="int" value="1" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="input_style"></value>
     <value key="hidden"></value>
     <value key="input_order"></value>
     <value key="time_separator">string::</value>
     <value key="date_separator">string::</value>
     <value key="end_datetime"></value>
     <value key="external_validator"></value>
     <value key="date_only"></value>
     <value key="default_now"></value>
     <value key="ampm_time_style"></value>
     <value key="required"></value>
     <value key="allow_empty_time"></value>
     <value key="css_class"></value>
     <value key="default">content/expiration_datetime | nothing</value>
     <value key="title"></value>
     <value key="description"></value>
     <value key="start_datetime"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="not_datetime">You did not enter a valid date and time.</message>
     <message name="datetime_out_of_range">The date and time you entered were out of range.</message>
   </field_messages>
   <index_args>
   </index_args>
  </metadata_element>
  <metadata_element id="creator">
   <index_type>ZCTextIndex</index_type>
   <index_p>1</index_p>
   <field_type>StringField</field_type>
   <acquire_p>0</acquire_p>
   <read_only_p>1</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="hidden" type="int" value="0" />
        <value key="unicode" type="int" value="1" />
        <value key="max_length" type="str" value="" />
        <value key="external_validator" type="str" value="" />
        <value key="display_maxwidth" type="str" value="" />
        <value key="display_width" type="int" value="20" />
        <value key="required" type="int" value="0" />
        <value key="css_class" type="str" value="" />
        <value key="default" type="str" value="" />
        <value key="title" type="str" value="Creator" />
        <value key="truncate" type="int" value="0" />
        <value key="description" type="str" value="Creator of this content. Automatically set." />
        <value key="whitespace_preserve" type="int" value="0" />
        <value key="extra" type="str" value="" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="hidden"></value>
     <value key="unicode"></value>
     <value key="max_length"></value>
     <value key="external_validator"></value>
     <value key="display_maxwidth"></value>
     <value key="display_width"></value>
     <value key="required"></value>
     <value key="css_class"></value>
     <value key="default">python: content.sec_get_last_author_info().fullname()</value>
     <value key="title"></value>
     <value key="truncate"></value>
     <value key="description"></value>
     <value key="whitespace_preserve"></value>
     <value key="extra"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="too_long">Too much input was given.</message>
   </field_messages>
   <index_args>
     <value key="lexicon_id">silva_lexicon</value>
     <value key="doc_attr">proxy_value</value>
     <value key="index_type">Cosine Measure</value>
   </index_args>
  </metadata_element>
  <metadata_element id="lastauthor">
   <index_type>ZCTextIndex</index_type>
   <index_p>1</index_p>
   <field_type>StringField</field_type>
   <acquire_p>0</acquire_p>
   <read_only_p>1</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="hidden" type="int" value="0" />
        <value key="unicode" type="int" value="1" />
        <value key="max_length" type="str" value="" />
        <value key="external_validator" type="str" value="" />
        <value key="display_maxwidth" type="str" value="" />
        <value key="display_width" type="int" value="20" />
        <value key="required" type="int" value="0" />
        <value key="css_class" type="str" value="" />
        <value key="default" type="str" value="" />
        <value key="title" type="str" value="Last author" />
        <value key="truncate" type="int" value="0" />
        <value key="description" type="str" value="Author who last edited this content. Automatically set." />
        <value key="whitespace_preserve" type="int" value="0" />
        <value key="extra" type="str" value="" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="hidden"></value>
     <value key="unicode"></value>
     <value key="max_length"></value>
     <value key="external_validator"></value>
     <value key="display_maxwidth"></value>
     <value key="display_width"></value>
     <value key="required"></value>
     <value key="css_class"></value>
     <value key="default">python: content.sec_get_last_author_info().fullname()</value>
     <value key="title"></value>
     <value key="truncate"></value>
     <value key="description"></value>
     <value key="whitespace_preserve"></value>
     <value key="extra"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="too_long">Too much input was given.</message>
   </field_messages>
   <index_args>
     <value key="lexicon_id">silva_lexicon</value>
     <value key="doc_attr">proxy_value</value>
     <value key="index_type">Cosine Measure</value>
   </index_args>
  </metadata_element>
  <metadata_element id="location">
   <index_type>TextIndex</index_type>
   <index_p>0</index_p>
   <field_type>StringField</field_type>
   <acquire_p>0</acquire_p>
   <read_only_p>1</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="hidden" type="int" value="0" />
        <value key="unicode" type="int" value="1" />
        <value key="max_length" type="str" value="" />
        <value key="external_validator" type="str" value="" />
        <value key="display_maxwidth" type="str" value="" />
        <value key="display_width" type="int" value="20" />
        <value key="required" type="int" value="0" />
        <value key="css_class" type="str" value="" />
        <value key="default" type="str" value="" />
        <value key="title" type="str" value="URL" />
        <value key="truncate" type="int" value="0" />
        <value key="description" type="str" value="Resource location of this content. Automatically set." />
        <value key="whitespace_preserve" type="int" value="0" />
        <value key="extra" type="str" value="" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="hidden"></value>
     <value key="unicode"></value>
     <value key="max_length"></value>
     <value key="external_validator"></value>
     <value key="display_maxwidth"></value>
     <value key="display_width"></value>
     <value key="required"></value>
     <value key="css_class"></value>
     <value key="default">content/silva_object_url</value>
     <value key="title"></value>
     <value key="truncate"></value>
     <value key="description"></value>
     <value key="whitespace_preserve"></value>
     <value key="extra"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="too_long">Too much input was given.</message>
   </field_messages>
   <index_args>
   </index_args>
  </metadata_element>
  <metadata_element id="contactname">
   <index_type>ZCTextIndex</index_type>
   <index_p>1</index_p>
   <field_type>StringField</field_type>
   <acquire_p>1</acquire_p>
   <read_only_p>0</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="hidden" type="int" value="0" />
        <value key="unicode" type="int" value="1" />
        <value key="max_length" type="str" value="" />
        <value key="external_validator" type="str" value="" />
        <value key="display_maxwidth" type="str" value="" />
        <value key="display_width" type="int" value="20" />
        <value key="required" type="int" value="0" />
        <value key="description" type="str" value="Name of contact person." />
        <value key="css_class" type="str" value="" />
        <value key="default" type="str" value="" />
        <value key="title" type="str" value="Contact name" />
        <value key="truncate" type="int" value="0" />
        <value key="whitespace_preserve" type="int" value="0" />
        <value key="extra" type="str" value="style=&quot;width: 96%&quot;" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="hidden"></value>
     <value key="unicode"></value>
     <value key="max_length"></value>
     <value key="external_validator"></value>
     <value key="display_maxwidth"></value>
     <value key="display_width"></value>
     <value key="required"></value>
     <value key="css_class"></value>
     <value key="default"></value>
     <value key="title"></value>
     <value key="truncate"></value>
     <value key="description"></value>
     <value key="whitespace_preserve"></value>
     <value key="extra"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="too_long">Too much input was given.</message>
   </field_messages>
   <index_args>
     <value key="lexicon_id">silva_lexicon</value>
     <value key="doc_attr">proxy_value</value>
     <value key="index_type">Cosine Measure</value>
   </index_args>
  </metadata_element>
  <metadata_element id="contactemail">
   <index_type>ZCTextIndex</index_type>
   <index_p>1</index_p>
   <field_type>EmailField</field_type>
   <acquire_p>1</acquire_p>
   <read_only_p>0</read_only_p>
   <read_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </read_guard>
   <write_guard>
     <roles></roles>
     <permissions></permissions>
     <expr></expr>
   </write_guard>
   <field_values>
        <value key="alternate_name" type="str" value="" />
        <value key="hidden" type="int" value="0" />
        <value key="unicode" type="int" value="1" />
        <value key="max_length" type="str" value="" />
        <value key="external_validator" type="str" value="" />
        <value key="display_maxwidth" type="str" value="" />
        <value key="display_width" type="int" value="20" />
        <value key="required" type="int" value="0" />
        <value key="description" type="str" value="Email address of contact person." />
        <value key="css_class" type="str" value="" />
        <value key="default" type="str" value="" />
        <value key="title" type="str" value="Contact email" />
        <value key="truncate" type="int" value="0" />
        <value key="whitespace_preserve" type="int" value="0" />
        <value key="extra" type="str" value="style=&quot;width: 96%&quot;" />
   </field_values>
   <field_tales>
     <value key="alternate_name"></value>
     <value key="hidden"></value>
     <value key="unicode"></value>
     <value key="max_length"></value>
     <value key="external_validator"></value>
     <value key="display_maxwidth"></value>
     <value key="display_width"></value>
     <value key="required"></value>
     <value key="css_class"></value>
     <value key="default"></value>
     <value key="title"></value>
     <value key="truncate"></value>
     <value key="description"></value>
     <value key="whitespace_preserve"></value>
     <value key="extra"></value>
   </field_tales>
   <field_messages>
     <message name="external_validator_failed">The input failed the external validator.</message>
     <message name="required_not_found">Input is required but no input given.</message>
     <message name="too_long">Too much input was given.</message>
     <message name="not_email">You did not enter an email address.</message>
   </field_messages>
   <index_args>
     <value key="lexicon_id">silva_lexicon</value>
     <value key="doc_attr">proxy_value</value>
     <value key="index_type">Cosine Measure</value>
   </index_args>
  </metadata_element>
</metadata_set>
